TemperZone TZT-100 User manual

User Manual
1
TZT-100 Multi-function
Thermostat

Please take time to read and understand these instructions. Doing so will assist you to
benefit from the many features offered in this premium product.
If properly installed, your thermostat will provide years of trouble- free control of the air temperature
within your living or working environment.
The TZT-100 thermostat has been designed and built by Smart Temp Australia P/L, to be an attractive,
highly reliable and an easy to use thermostat. The TZT-100 model is a modified version of a standard
Smart Temp product. It has been configured specifically to Oasis Heat Pumps requirements for use on
Oasis Heat and Chill Heat Pumps
Care has been taken in the preparation of this manual. However, Oasis takes no responsibility for errors or omissions in this
document. It is the responsibility of the user to ensure this thermostat and the equipment connected to it, is operating to their
specifications, and in a safe manner.
Due to ongoing product improvement Smart Temp Pty. Ltd., Oasis. reserve the right to change the specifications of this
thermostat (or its components) without notice. . Any such changes may impact upon the operational detail described in this
manual. The user should ensure they are reading documentation which relates to the version of thermostat they have.
.

Introduction
Commercial Programmable mode
On / Off and Mode Selection
Setting the Clock
Programming Your 2 Daily Events9
After Hours Rn Timer
Manual model
On / Off and Mode Selection
Setting the Fan Function
Setting the Clock
Setting Your Desired Temperature
Switching Between Day and Night Set Points
To Review the Set Temperature
Common Functions
The Buttons Explained –ON/Off and Mode Selection etc
Control Modes
Fan Functions
Table of Contents

This TZT-100 thermostat is able to be used as a residential programmable thermostat, a
commercial programmable thermostat or as a simple to use manual thermostat. Your
installer will have set these modes to best suit your individual needs.
For clarity, this user manual is broken into the following main sections.
Commercial Programmable Mode.
Allows programming of 1 “Start” and 1 “Stop” time and temperature per day.
Manual Mode. (See page 18 of this manual).
Use the MODE button to switch On and Off. No time-related programming available.
Common Functions - All modes.
.

On /Off and Mode Selection
Tap the “MODE” button to cycle the thermostat through
the available modes: “Heat” only, “Cool” only, Auto-
changeover (Shown by both “Heat” & “Cool” in the LCD),
Emergency Heat (if fitted), and “OFF”. If the fan mode is
set to “Fan On”, when you select “OFF” mode the fan
mode will automatically change to “Auto Fan” to prevent
the fan from running unexpectedly while the unit is OFF.
(Note –Not all modes may be active on yourthermostat).
Setting the Clock
The thermostat is fitted with a real time clock. This clock is used by the thermostat for
the programming functions as described below.
It is essential that the clock time and day are set accurately if you require your
programmed events to start on time.
Commercial Programmable Mode

Toset the clock, tap the “PROG” button. The LCD will show the hours digit flashing. Use
the up ( ) or down ( ) button to adjust the hours to the correct time (notethe AM
/PM symbol). Tapthe “PROG” button againand now the minutes digits will flash. Adjust
this value using the up ( ) or down ( ) button to show the correct minute. Tap
the “PROG” button again and now the weekday flashes, again use the up ( ) or down
() button to set this value to the correct day of the week. Tap the “PROG” button
again toexittheclocksetfunction.
Programming Your 2 Daily Events
Commercial programming of the thermostat has been designed to be an extremely
simple and logical process. The thermostat permits you to program a START time for the
air conditioning system, then a Stop time for each day of the week. When the thermostat
is displaying “START” in the LCD, it will maintain whatever set point has been chosen.
When the thermostat is displaying “STOP”
in the LCD it will be OFF (or it will maintain an energy
efficient overnight temperature if set by the installer).
To enter the program mode:
Press and hold the “PROG” button for 3 seconds. The
display will change to show the Day “Monday” flashing.
Using the up ( ) or down ( ) buttons adjust the day
to the day you wish to start programming an event orto
the day you wish toeditan existing event.

Tap the “PROG” button to advance to the next step, The
LCD will show the word “START” with the hour’s digit
flashes. Using the up ( ) or down ( ) buttons adjust
the hours value to the time you wish the building Air
Conditioning system to start.
Tap the “PROG” button again, now the minute’s digits
flashes. Using the up ( ) or down ( ) buttons set the
minute to the time you wish the building air conditioning
systemto“START” forthecurrentlyselected day.
Tap the “PROG” button to advance to the next step, The LCD will show the word
“STOP” with the hour’s digit flashes. Using the up ( ) or down ( ) buttons adjust the
hours to the time you wish the building air conditioning
system to “STOP” for the currently selected day.
Tap the “PROG” button again, now the minute’s digits
flashes. Using the up ( ) or down ( ) buttons set the
minute to the time you wish the building air
conditioning system to “STOP” for the currently
selected day. The LCD will now show the word “COPY”.

You now have TWO options
Option 1 - Continue programming as above.
Simply continue to tap the “PROG” Button as you have been previously to advance to the
next day, “Tuesday” in this example “START” then “STOP” times, then Wednesday,
Thursday etc, following the same simple steps previously explained….
OR
Option 2 –“Copy” Program
To copy the values you have just set to other days of the
week tap the up ( ) or down ( ) buttons to “TAG” each
additional day you wish to copy the currently set days
program to. When you have finished “Tagging” the days
you desire press the “PROG” button to initiate the copy
process. The word “Copy” will flash briefly to confirm the
copy process and your current days values will be copied
to the days selected. Normal programming will resume at
the next day to be programmed.
Please Note –Your thermostat’s programs may be controlled from a Building
Management System (BMS) thereby overriding any program you may have entered, as
described above. If the BMS is controlling the thermostat the word “Start” or
“Stop” will flash in the LCD to indicate the thermostat program is under BMS control.

After Hours Run Timer
For convenience, the installer may have set the after-hours run function. This function
permits you to temporarily turn the thermostat back on for an installer pre-set period
of time if the “Stop” program is running, at the conclusion of which the thermostat will
automatically turn back off again.
To activate the after-hours run timer, simply tap the
“O/RIDE” button. (Or, the optional “After Hours” run
button on the remote room temperature sensor.) The LCD
will show the word “Override” flashing in the LCD.
You can cancel any unexpired portion of the timer period
by tapping the “O/RIDE” button again. The word
“Override” will vanish from the screen.
To Review the Set Temperature:
Simply tap the up ( ) or down ( ) button to first turn the LCD backlight then again to
display the currently set temperature.
Your Installer may have set a default “Start” event temperature that will be used at the
commencement of each day; this will override any previous day’s temperature
adjustments.

ON / OFF and Mode Selection
Tap the “MODE” button to cycle through all the available
modes: “Heat”-only, “Cool”-only, Auto-changeover (Both
“Heat” & “Cool” show in the LCD at the same time),
Emergency Heat (if fitted), and “OFF”. If the fan mode is
set to “Fan On”, when you select “OFF” mode, the fan
mode will automatically change to “Auto Fan” to prevent
the fan from running unexpectedly while the unit is OFF.
(Note –Not all modes may be active on your thermostat).
Setting the Fan Function
Detail of the thermostat’s fan control functions can be found on page 26 of this manual.
Setting the Clock
The thermostat has a real time clock. In Manual mode, this clock has no function other
than to display the time. The clock display can be disabled by the installer if desired.
To set the clock, press and hold the “PROG” button for 3 seconds. The LCD will show
the hours digit(s) flashing. Use the up ( ) or down ( ) button to adjust the hours to
the correct time (note the AM / PM symbol). Tap the “PROG” button and now the
minutes digits will flash. Adjust this value using the up ( ) or down ( ) button to
show the correct minute.
Manual Mode

Tap the “PROG” button and now the week day flashes. Use the up ( ) or down ()
button to set this value to the correct day of the week. Tap the “PROG” button again to
exit the clock set function or simply wait 30 seconds to auto exit this screen and return
to the main operating display.
Your clock is now set.
Setting Your Desired Temperature
Press and hold the up ( ) or down ( ) buttons for 3 seconds. The thermostatdisplay
will change to show the word “SET”, and the active set point for the current mode.
(Heating or Cooling) as you hold the up ( ) or down ( ) buttons the current set
point will change accordingly.
If Auto mode is selected (Indicated by both “Heat” & “Cool” showing on the display at
the same time); after adjusting the “Heat” set point, wait without touching a button for
3 seconds. The thermostat display will change to show “Cool”, “SET” and your current
cooling set temperature. If desired change this value with the up ( ) or down ()
buttons. Wait for another 3 seconds for the thermostat to automatically exit this
temperature setting screen. Your new set temperatures will be maintained.

Switching Between Day and Night Set Points
If the function is set by your installer, the thermostat will keep two sets of temperatures
in its memory. Typically one set is for daytime set point temperatures, and the other for
the night settings.
The thermostat provides a quick and simple way to change between your day and night
time set temperatures. Simply tap the “PROG” button. The display will change, showing
“Day” or “Night” in the top left hand corner as you switch between modes.
Set the “Day” set temperature(s), separately from the “Night”. Each are set as described
on the previous page.
To Review the Set Temperature:
Simply tap the up ( ) or down ( ) button to first turn the LCD backlight then again to
display the currently set temperature.

The Buttons Explained –ON/Off and Mode Selection etc
MODE
Tap this button to cycle the thermostat through the available modes: “Heat” only, “Cool”
only, Auto-changeover (Indicated by the words; “Heat” and “Cool” being visible on the
display at the same time), Emergency Heat (if fitted), and “OFF”. When setting the
thermostat to “OFF” mode, the fan mode will automatically change to “Auto Fan” mode
so the fan does not unexpectedly continue to run.
(Note –Not all modes may be active on your thermostat.)
O/RIDE (Override)
Commercial Programmable Mode:
This button initiates the after-hours run timer. When activated, the thermostat will
temporarily replace the “Stop” program temperatures with the “Start” program
temperatures for an installer-defined pre set period.
Residential Programmable Mode:
The “O/RIDE” button is used to override the current “event” time scheduling, and to hold
the currently set temperature indefinitely. This set temperature will be maintained until
released by tapping the “O/RIDE” button again. “Hold” will be displayed in the LCD to
confirm this function is active.
Common Functions

(Up)
Use this button to increase the desired room temperature for “Heating” or “Cooling”
modes, or to increase a “value” in programming modes. Also used to force an override of
the pre-programmed temperatures and temporarily replace them with a new higher set
temperature.
(Down)
Use this button to decrease the desired room temperature for “Heating” or “Cooling”
modes, or to decrease a “value” in programming modes. Also used to force an override
of the pre-programmed temperatures and temporarily replace them with a new lower
set temperature.
PROG (Program)
In Residential or Commercial Programmable mode:
Tap the “PROG” button to begin setting the clock. Press and hold the “PROG” button for
3 seconds to begin programming your dailyevents.
In Manual mode:
Tap the “PROG” button to switch between “Day” & “Night” modes. Press and hold the
“PROG” button for 3 seconds to begin setting the clock.

Control Modes:
Heat-only Mode - The thermostat will turn on the Heating when the room temperature
falls below the Heat set point temperature. In Heat-only mode the thermostat will NOT
bring on the Cooling regardless of the room temperature and the Cooling set point
temperature. In Heat-only mode, only the word “Heat” will be displayed in the LCD.
When your thermostat is calling for heat, the word “Heating” will be displayed.
If the word “Heat” is flashing, the thermostat is performing an Anti-Rapid-Cycle safety
delay prior to restarting the heating cycle.
E. Heat Mode - The thermostat will only use your emergency heating device to maintain
your desired heating temperature. This method of heating can be quite expensive
therefore Emergency Heat mode is not recommended unless it is essential. When your
air conditioning system is heating using emergency heat, the word “E.Heat” in the LCD
will change to the word “E.Heating”.
Cool-only Mode - The thermostat will turn on the Cooling when the water temperature
rises above the Cool set point. In Cool-only mode the thermostat will NOT bring on the
Heating regardless of the water temperature and Heating set point temperature. In Cool-
only mode, only the word “Cool” will be displayed in the LCD. When your heat pump
system is cooling, the word “Cooling” will be displayed.
If the word “Cool” is flashing, the thermostat is performing an Anti-Rapid-Cycle safety
delay prior to restarting the Cooling.

Auto-changeover Mode - The thermostat will turn on the Heating if the water
temperature falls below the Heat Set point temperature. Likewise it will commence
Cooling if the water temperature rises above the Cool Set point. This is the recommended
mode as it provides automatic control of the heat pump system to maintain the desired
water temperature. Auto-changeover mode is indicated by both words “Heat” & “Cool”
showing in the LCD at the same time.
If “Heat” or “Cool” is flashing; the thermostat is performing an Anti-Rapid-Cycle safety
delay prior to restarting the air conditioning system.

Padlock Symbol.
Whenever this symbol is shown, a control limit has been reached, or a button,
or other function has been locked out.
Spanner Symbol.
If you see a spanner ICON flashing on your LCD, the installer has left your
thermostat in “Commissioning mode” Although your thermostat will operate
your heating and cooling system whilst in “commissioning mode”, all active
safety and energy conservations delays have been disabled. It is therefore
HIGHLY recommended that you contact your installer and request that the
installer mode be disabled.
Satellite Symbol
This indicates that your thermostat is receiving or sending information to
another “communicating” controller, or a Building Management System.
Information received from the building supervisory control system may
change the function (mode or set temperature) of the thermostat. This is
normal and no cause for concern.
The intent of this communications is to permit the centralised control of building
functions which can include building climate control. To achieve this the BMS must be
able to override thermostat settings made by the user. This ability is especially useful
when a large facility has a number of heat pumps.

TEXT “Locked”:
The temperature of the outside air can initiate, or prevent certain functions within the
thermostat from operating. If this happens, the word “LOCKED” appears. These
functions automatically “unlock” once the outside air temperature becomes favourable.
TEXT “FAULT”
The TZT-100 has been “requested” to shut down the heating, cooling or heat pump
system as a response from an external command. This request may have come from a
sensor fitted to the heat pump system, a sensor monitoring supply power or a multitude
of safety interlocks that can be used. To clear this fault a service call to your service
person may be necessary.
Remote Temperature Sensors:
Your thermostat is fitted with an accurate and reliable temperature sensor used to
measure the water temperature. There may be occasions where the thermostat cannot
be placed in an ideal location for water temperature measurement; therefore the
installer may have fitted “remote temperature sensor(s)”. These sensors will then report
the water temperature from the remote temperature location back to the thermostat
where this temperature will be displayed on the LCD.
If your thermostat is used in a commercial location, your water temperature sensor may
be fitted with a button which activates the “After Hours” run function. Consult your
installer if you require this feature or have questions about its use.

Symptom
Suspected Fault
Suggested remedy
Temperature display
seems inaccurate
Sensor location needs to be checked
Make sure sensor is in correct position
Position of sensor in titanium pocket
Make sure sensor is at the bottom of the
titanium pocket
Sensor calibration may be incorrect
Call your installer, Smart Temp or Oasis, for
information on how to
calibrate the air temperature sensor
A remote temperature sensor may be in use.
The temperature is NOT being measured at
the thermostat location. The remote
location may have a different temperature.
“Locked” appears on LCD.
Heating or Cooling will not
operate.
This is not a fault.
Outside air temp too high to permit heating
Outside air temp too low to permit cooling.
Heating and/or cooling disabled to conserve
energy. The heating or cooling function can
be disabled when the outside
temperature is warm or cool enough to not
warrant the use of the heat pump
Controller has no
display
Check main fuse
Reset Circuit breaker
Call an approved service agent.
Faulty Wiring
Call an approved service agent.
Heat Pump System seems
to run all the time
Heating and/or cooling temperatures set to an
un-achievable value.
Set a lower heat temperature and/or a
higher cooling temperature. Review manual
on setting temperatures
Heat-Cool System set to Heat Pump Mode
Installer setting Incorrect –call for service
Spanner Symbol in the LCD
flashes all the time
Installer has left the thermostat in
“Commissioning mode”
Contact your installer and request
“Commissioning mode” be disabled.
Troubleshooting

Symptom
Suspected Fault
Suggested remedy
E.Heating is shown on LCD
without manually
selecting it.
This is not a fault.
Your installer has set your TZT-100 to
automatically use “Emergency / Auxiliary
Heating” if the outside air temperature is very
low.
Some buttons do not
appear to operate.
Padlock is show on LCD.
Key board lock is on.
See page 28 for more information on this
function.
This is not a fault. Buttons or functions may
be locked to prevent unauthorised
tampering
Cannot enter “Heat” or
“Cool” modes.
Thermostat set for “Heat-only” or “Cool-only”
modes
Heating or Cooling mode not available on
your air conditioning system.
I cannot set my desired
heating or cooling set
temperature.
Padlock Symbol is flashing
This is not a fault.
Your installer has set control limits for the
Heating and or Cooling set temperature.
Contact your installer and request these
limits to be removed / adjusted.
Outside Air Temp display
is showing dashes
Outside air temperature air sensor has failed.
Check wiring and outside air sensor.
Replace outside air sensor
No outside air sensor fitted.
Installer has set “TT” terminal function
incorrectly –Call for service.
“Heat” or “Cool” is
flashing in the LCD.
Heating or cooling has not
started.
This is not a fault. Heating or cooling will start
shortly.
The TZT-100 is performing an Anti Rapid Cycle
delay to conserve energy and to protect the
heating, cooling or heat pump system.
The Fan runs on for some
time after the heating or
cooling stops, even when I
turn the thermostat OFF.
This is not a fault. (“Fan On” will be flashing)
The is fitted with a “Fan Purge” function that
keeps the fan running for a minimum amount
of time after the heating or cooling has
stopped.
Contact the installer if you wish this function
disabled (NOT recommended).
Temperature display in
the wrong format –C or F.
The TZT-100 can operate in either Deg C or
Deg F mode. This is set by your installer.
Contact your installer, Smart Temp or Oasis
for information on changing
your display type.